Verfahren zur Herstellung eines Brillenglases zur Bereitstellung einer optischen Anzeige

Details

Veröffentlichungs-Nr.

EP2418073

Aktenzeichen

EP10305863

Anmeldetag

5. August 2010

Veröffentlichung

10. Oktober 2012

Erteilung

10. Oktober 2012

Rechtsraum

EP

IPC

G02B27/01B29C45/14B29L11/00B29D11/00G02C7/08B29C33/12B29C39/00B29C39/10

Abstract

The invention concerns a method of manufacturing a vision-correction lens (1), that has a front face (1A) and a rear face (1B), and into which light beams emitted by an optical element of a light beam generator system are introduced and directed towards the eye of the wearer to enable information content to be viewed by means of a transparent light guide (4), said light beam generator system being constituted by two optical pieces, a first beam generator piece (2A) placed on a first entry surface (4A) of the rear face of the lens and a second optical piece (2B) placed on a second entry surface (4B) of the front face of the lens, method consisting in molding the lens (1) in a mold formed by a first mold portion (6A) and a second mold portion (6B), the space between these two portions being closed by a cylindrical element. According to the invention, - the first entry surface (4A) is formed by making in the lens a first molded cavity by means of a stud (6C) secured to the second mold portion (6B), and that the light guide (4) is temporarily secured to said stud (6C) prior to molding; - the second entry surface (4B) is formed by making in the lens a second cavity by adequate partial filling of the mold in order to form an complementary volume (8) forming said second cavity and filled with a component immiscible and chemically inert during molding with the molded product constituting the lens.

Anmelder

Firma

ESSILOR INTERNATIONAL (Compagnie Générale d'Optique)

Land

🇫🇷 Frankreich

Fachgebiete